SMOKING,DIABETES,HYPOGLYCEMIA,KIDNEY,RETINA

People with diabetes who smoke are
more than twice as likely to have an episode of severe hypoglycemia,
or very low blood sugar, as those who have never smoked

Loss of sugar can cause mental confusion, or even coma or seizures in
severe instances. Smoking, through its effect on hormone regulation
and insulin clearance, has been hypothesized to result in severe
hypoglycemia.

Quoting a study published in the journal Diabetes Care, after taking account of other factors, smoking conferred a
2.6-fold increased risk of having severe hypoglycemia, Klein and
colleagues report.